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  1. Math

    From Number Puzzles to Automata

    A high school student plays with numbers and does an award-winning project elucidating the link between automata and divisibility.

    By Ivars Peterson
  2. Humans

    Letters from the April 10, 2004, issue of Science News

    Inaction verbs? Regarding “The Brain’s Word Act: Reading verbs revs up motor cortex areas” (SN: 2/7/04, p. 83: The Brain’s Word Act: Reading verbs revs up motor cortex areas), did the researchers image the brains of disabled people who know the meaning of a verb but can’t perform the action, or of people without any […]

    By Science News
  3. Humans

    From the April 7, 1934, issue

    Pouring the 200-inch glass disk for a new telescope, a new man-ape link, and planetary weather cycles.